HCD 300 - Homework 10 Exam #1 Questions with correct
answers
Researchers want to determine whether or not there is a difference in systolic
blood pressure based on how many hours a person exercises per week. They
divide a sample of 72 people into 3 groups based on how many hours they
exercise per week. Group 1 exercises less than 2 hours per week, Group 2
exercises between 2 and 5 hours per week, and Group 3 exercises more than 5
hours per week. Researchers measure and record the systolic blood pressure for
each participant. They choose α = 0.05 level to test their results.
How do you interpret this finding? There ____ enough evidence to conclude that
there is a difference between the blood pressure measurements for the 3 groups
at the 0.05 significance level. - ✔✔- is
A group of 20 people were asked to remember as many items as possible from a
list before and after being taught a memory device. Researchers want to see if
there is a significant difference in the amount of items that people are able to
remember before and after being taught the memory device. They also want to
determine whether or not men and women perform differently on the memory
test. They choose α = 0.05 level to test their results.
True or False, performance on the memory test before and after being taught the
memory device varies based on gender. - ✔✔- False
F(2, 33) = 5.5, p < 0.01
How many groups were in this study? - ✔✔- 3
F(2, 33) = 5.5, p < 0.01
, How many participants were in this study? - ✔✔- 36
A group of 20 people were asked to remember as many items as possible from a
list before and after being taught a memory device. Researchers want to see if
there is a significant difference in the amount of items that people are able to
remember before and after being taught the memory device. They also want to
determine whether or not men and women perform differently on the memory
test. They choose α = 0.05 level to test their results.
What is the within groups degrees of freedom for this study? - ✔✔- 36
Researchers want to determine if caffeine affects reaction time. They divide a
sample of 150 people into 3 groups. Group 1 gets a regular drink with no caffeine,
group 2 gets a drink with 95 mg of caffeine, and group 3 gets a drink with 250 mg
of caffeine. Each group is then given a test to gauge their reaction time. What is
the appropriate test to use? - ✔✔- One-way ANOVA
Researchers want to determine whether or not there is a difference in systolic
blood pressure based on how many hours a person exercises per week. They
divide a sample of 72 people into 3 groups based on how many hours they
exercise per week. Group 1 exercises less than 2 hours per week, Group 2
exercises between 2 and 5 hours per week, and Group 3 exercises more than 5
hours per week. Researchers measure and record the systolic blood pressure for
each participant. They choose α = 0.05 level to test their results.
What is the between groups degrees of freedom for this study? - ✔✔- 2
ANOVA with replication is also known as? - ✔✔- repeated measures
answers
Researchers want to determine whether or not there is a difference in systolic
blood pressure based on how many hours a person exercises per week. They
divide a sample of 72 people into 3 groups based on how many hours they
exercise per week. Group 1 exercises less than 2 hours per week, Group 2
exercises between 2 and 5 hours per week, and Group 3 exercises more than 5
hours per week. Researchers measure and record the systolic blood pressure for
each participant. They choose α = 0.05 level to test their results.
How do you interpret this finding? There ____ enough evidence to conclude that
there is a difference between the blood pressure measurements for the 3 groups
at the 0.05 significance level. - ✔✔- is
A group of 20 people were asked to remember as many items as possible from a
list before and after being taught a memory device. Researchers want to see if
there is a significant difference in the amount of items that people are able to
remember before and after being taught the memory device. They also want to
determine whether or not men and women perform differently on the memory
test. They choose α = 0.05 level to test their results.
True or False, performance on the memory test before and after being taught the
memory device varies based on gender. - ✔✔- False
F(2, 33) = 5.5, p < 0.01
How many groups were in this study? - ✔✔- 3
F(2, 33) = 5.5, p < 0.01
, How many participants were in this study? - ✔✔- 36
A group of 20 people were asked to remember as many items as possible from a
list before and after being taught a memory device. Researchers want to see if
there is a significant difference in the amount of items that people are able to
remember before and after being taught the memory device. They also want to
determine whether or not men and women perform differently on the memory
test. They choose α = 0.05 level to test their results.
What is the within groups degrees of freedom for this study? - ✔✔- 36
Researchers want to determine if caffeine affects reaction time. They divide a
sample of 150 people into 3 groups. Group 1 gets a regular drink with no caffeine,
group 2 gets a drink with 95 mg of caffeine, and group 3 gets a drink with 250 mg
of caffeine. Each group is then given a test to gauge their reaction time. What is
the appropriate test to use? - ✔✔- One-way ANOVA
Researchers want to determine whether or not there is a difference in systolic
blood pressure based on how many hours a person exercises per week. They
divide a sample of 72 people into 3 groups based on how many hours they
exercise per week. Group 1 exercises less than 2 hours per week, Group 2
exercises between 2 and 5 hours per week, and Group 3 exercises more than 5
hours per week. Researchers measure and record the systolic blood pressure for
each participant. They choose α = 0.05 level to test their results.
What is the between groups degrees of freedom for this study? - ✔✔- 2
ANOVA with replication is also known as? - ✔✔- repeated measures
